School of Physics Lecture Demonstration Manual

Wg-1 Beats Using Two Tuning Forks

Published: Wednesday 15 March 2006 - Updated: Thursday 31 March 2011

Aim

To demonstrate the phenomenon of beats.

Apparatus

Tuning forks

Diagrams

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Beats Using Two Tuning Forks

Beats Tuning Forks Diagram

Description

This demonstration requires two identical tuning forks. One of the tuning forks is loaded with a small mass (tape) so as to change its natural frequency of vibration. Once the tuning forks are struck "beats" are clearly heard.

Safety notes

Maintenance 

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